Tool



ug i932. A. R. KERR Li@ TOOL Enea May 22. 1931- mv'ENToR #gram g Sfr a"l Q ATTORNEY! Patented Aug. 16, 1932 ANDREW a. kann, or Ganar rants,MoNrnnA Toor,-

Application ined May e2, 19er. sensi No. 539,326. i f

This invention relates to tools especially adapted for applyingcouplings tobendable tubes or pipes, and more particularly to a devicefor iiaring the end of a tube to form a l fiange for engagement with theseat within a coupling so that a leak-proof connection will be hadbetween the tube and coupling when the latter is threaded to itscompanion section or nipple.

Another obj ect of this invention is the provision of a screw-threadedshank adapted for threaded engagement with the coupling and carryingmeans for iaring the end of the tube against the seat of the couplingwhen row tated relative to the tube and by having the shank threaded tothe coupling to permit said shank to be adjusted relative to thecoupling Jfor increasing the action of said means on the end of the tubeas desired.

A further object of this invention is the provision of a tool of theabove stated character which will be simple, durable and efficient andwhich may be manufactured and sold at a comparatively low cost.

vWith these and other objects in view, this invention consists incertain novel features of construction, combination and arrangement ofparts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawing, in which Figure l isa side elevation illustrating a 35 tool applied to a coupling andbendable tube and constructed in accordance with my invention,

Figure 2 is a sectional view illustratin the application of the tool tothe coupling prior to flaring the end of the tube,

' Figure 3 is a similar view showing the end of the tube flared by thetool,

Figure 4 is a side elevation illustrating the tool removed from thecoupling,

Figure 5 is an end elevation illustrating the means on the shank forflaring the end of the tube when the shank is rotated rela-` tive tosaid tube,

Figure 6 is a side elevation illustrating the 5G tube prior to beingflared, and

F igure7 isa. similar view showing? the tube after being'flared.V TReferring yin detail to the drawing,` the numeral l indicates a bendabletube with-'a cupling 2 associated therewith', and'thelat- 55 terincludes abody 3 with a comparatively long neck @of av diameter lessthan the`difameter of the body and which snuglyfitslthe tube l with oneend of the tube extending into thebody Due to the dierence inthe'dji!am'eters ofthe body and neck, a tapered seat 5 is formed-within thebody, and thein'terior of the. body from the seat 5 to thefre'eend ofthe .body is screw-threaded as shown at 6,. Theforegoing descriptionrelates 'tojallwell- 65 known type of couplingadaptedto be'se cured-to'ftheV tube by flaring' the'endof the tube against the seat v5 showninwFigureB so that when the coupling is thread'edt'o its h companionsectionwor nipple (n'otslifown), '3"0 the flared end ofy the tube willtightly fitthe seat and thereby establish a leak-proof connection. VVAToeasily and quickly flarethe end of the tube so as to evenly fit theseat`5,"1ny tool is provided, andV it is to be understood that-myV tool'may be constructed in various sizes so as to "fit thedifierent sizedcouplings nowonthemarket.

A screw-threadedshank has formed upon one end a head 8 provided with anopening 80 therethrough to slidably receive a bar 9 having headed ends'l0 to prevent separation of the bar from the head but which will permitthe bar to be adjusted relative to the head for the purpose ofincreasing and decreasing the leverage at one side of the head asdesired, it being understood that the bar acts as a medium Jfor a personto turn the shank.v

The other end of the shank has formed eccentrically thereof asemi-conical shaped flaring element 1l providing an arcuately curvedflaring face 12 for engagement with .the end of the tube as shown inFigure 2.

The apex or smallest end of the flaring element 11 enters the tube firstwhen the shank is applied to the coupling as shown in Figure 2. Theshank is threaded into the coupling until the flaring element 11 isbrought into engagement with the end ofthe tube with suicient force tocause Haring of the end of the t`ube When the shank is rotated relativeto thek tube. As the flaring of the tube takes place, the shank may beadjusted relative to the coupling by holding said coupling and turningthe shank relative thereto, so that when the inal bending or flaring ofthe end of the tube takes place, it Will snugly fit or conform to theseat 5 of the coupling.

From the foregoing description taken in connection with the accompanyingdrawing it will be noted that' a tool constructed in accordance With myinvention will permit a tube when in an installed position to be easilyared against the seat of a coupling Without removing the tube, therebyrendering the device very advantageous to mend copper tubing and thelike employed upon motor vehicles and other machinery or Wherever nbendable tubing is employed.

,While I heve Shown eed deseribed the preferred embodiment of myinvention, it will Vbe understood that minor changes may be madefin theconstruction, combination and arrangement of parts Without departingfrom the spirit and 'scope of my invention as claimed. n

`Having thus described my invention, What I claim is: f

In combination With a tube coupling have ing Ya flared seat, ascrew-threaded shank threaded in the coupling, means for rotating theshank, and a semi-conical shaped element formed eccentrically With oneend-of the f shank with the smallest end thereof spaced from the end ofthe shank and adapted to extend into the end of a tubewith the kcurvedVWall of said element engagingthe Wall of the tube adjacent the end'ofthe latter and during the rotation of the shank adapted to graduallyflare said Wall of the tube tightly against the flared seat ofthecoupling lWithout breaking or cracking the tube.

In testimony whereof I affix my signature.

ANDREW R. KERR.

